If test cross gives all dominant characters it means the parent is:
Correct answer: C. Homozygous dominant
- A. Homozygous recessive
- B. Heterozygous
- C. Homozygous dominant
- D. Heterozygous dominant
Explanation
If the seed is homozygous round(RR) it will grow into a pea plant that forms all gametes with only the `R` allele. Wrinkled seed plant is always homozygous recessive. it will form all gametes with the `r` allele. Fertilization will result in 100% round seed progeny.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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